Talk:Nadir crater

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Africa: Guinea

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Pangea

In Pangea, Africa is connected to the Americas. Is it possible that the Chicxulub and Nadir were once one crater, and then it split in half when Pangea broke apart? I am a Green Bee (talk) 16:12, 24 August 2022 (UTC)[reply]

No, it is not possible. North Africa separated from North America more than 100 million years before the impacts occurred. GeoWriter (talk) 12:48, 25 August 2022 (UTC)[reply]

Asteroid or comet?

At some point in recent years, media references to the Chixculub event seem to have shifted from its involving a comet to the idea of its being an asteroid. Why has this happened? For most of my life a comet was inferred, in particular from the occurrence of iridium deposits dating from around the time of the event. 'Evidence found at the Chicxulub crater suggests the rock was composed of carbonaceous chondrite ... However, carbonaceous chondrites are rare amongst main-belt asteroids, but possibly widespread amongst long-period comets, providing additional support to the cometary impact hypothesis.' See: https://www.eurekalert.org/news-releases/916909 Carusus (talk) 12:10, 3 October 2024 (UTC)[reply]

@Carusus: Please read Chicxulub_crater#Astronomical_origin_and_type_of_impactor. This should answer your questions. Hemiauchenia (talk) 17:00, 3 October 2024 (UTC)[reply]